Steel tongue drum multi-mic phase: top vs body vs room / tank drum fold
Close spots over steel tongue drum (tank drum / hank drum) tongues feel glassy and present in the booth and in cans. On phone speakers or YouTube mono fold, tongue attack, Mid fundamental, and body bloom often thin or cancel against underside/body, stereo OH, and room paths that carry the same strike a few milliseconds later. Meditation, yoga, and lesson beds (handpan, kalimba, voice, shaker) stack the same problem. That is usually polarity and arrival time between tongue spots and shared beds, plus a stereo bed that was never folded before send. Fix polarity and small delays first. Frequency-aware phase repair belongs only after residual L/R fights remain on stereo beds before mono fold. Distinct from handpan / hang drum pages and steelpan / steel drum pages: this page is about cut-tongue tank drums (top tongue field vs body/underside vs room), not ding/Gu hang geometry or Caribbean pan ensemble beds. Cross-links: handpan, steelpan, kalimba, mallets, field, livestream.
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PHIXER is free stereo phase-repair (VST3/CLAP/AU · Win/Mac/Linux) from Riverflux Audio. Frequency-aware phase rotation for leftover L/R fights on stereo material. It is not a compressor, not a widener, and not a substitute for mic placement or mono audition of the stream or mix bus. Polarity and timing first; PHIXER after residual spectral fights.
What steel tongue drum multi-mic phase failure sounds like
- Tongue strike huge in cans, thin on phones. Close tongue spots share the same strike a few ms apart from stereo OH, room, or body beds.
- Body / underside bloom hollow on YouTube. Spot + stereo bed + room stack cancels Mid when the platform folds.
- Top vs body proximity present in booth, gone on phone. Hard L/R across tongue and body paths collapse on mono fold.
- Tongue-drum hero vs handpan / kalimba / voice meditation bed fight. Companion beds and tongue spots share mid energy without polarity hygiene.
- Fine in headphones, broken for livestream viewers. Same destinations as YouTube / social mono, OBS livestream, handpan, steelpan.
Fast mono audition (about 60 seconds)
- Solo the stream / mix bus (not only booth headphones). Flip a utility to mono.
- A/B tongue spots muted vs open under body, stereo OH, and room. Note what disappears: tongue bite, Mid, body bloom, mallet shimmer.
- Solo pairs: top vs body, tongue vs OH, tongue drum vs handpan/kalimba bed, spot vs room.
- Check correlation on the delivery bus, then with the full meditation bed muted vs open.
Order of operations (before spectral phase rotation)
1. Polarity between tongue spots and shared body / OH / room
Flip tongue or body spots vs stereo OH, or tongue drum vs companion bed, when body or Mid return immediately on a clear strike. Guide: polarity vs phase. Cousins: handpan / hang, steelpan, kalimba.
2. Small delay align secondary paths to the hero tongue-drum image
OH, room, and body secondary often arrive later than close tongue spots. A few samples of delay on the secondary often restores body better than EQ for "more spa" or "more shimmer."
3. One hero tongue-drum image to the stream or mix bus
Do not send every tongue, body, room, and OH all hot into the livestream or print. Pick a hero Mid-safe bed (often a focused tongue close plus selective body), keep extras muted or low. Parallel stacks are classic thin-tank on phone fold. Related: overhead & room.
4. Prefer hero tongues as the tone; quieter color spots
Secondary body and underside closes should color proximity and steel identity, not replace the hero image for the stream mix. If every close sits at full level under a loud OH, mono fold almost always hollows the tank bed.
5. Skip wideners and Haas on tongue-drum beds before fold
Short-delay width and stereo imagers make booth headphones shimmer and phones hollow. Keep critical low-mid and body fundamental centered for stream and print.
6. Only then audition residual L/R spectral fights
If a stereo bed must stay stereo and fold still hollows a band after the steps above, gentle frequency-aware phase rotation can help. Prove it with mono A/B, rotator bypassed vs engaged.
Path types and typical failure modes
| Path | Common mono failure | First fix |
|---|---|---|
| Tongue top + stereo OH | Body / Mid cancel on stream | Polarity; delay secondary; quieter secondary |
| Tongue + body / underside + room | Hollow strike, thin fundamental | Polarity + timing; hero Mid-safe path |
| Tongue drum + handpan / kalimba bed | Hero vs companion fight on phone | Polarity + delay; hero image |
| Stereo pair hard L/R across top/body | Huge in cans, thin on phone | Center critical lows; simplify width |
| Board / matrix → OBS / YouTube | Fine in booth, hollow for viewers | OBS livestream / YouTube mono |
Studio / livestream checklist (to send)
1. Label tongue top vs body vs OH vs room vs companion bed
Name tongue spots, body/underside, handpan/kalimba/voice/shaker, stereo OH, and room so operators know what hits the livestream or print. Ambiguous stacks get left open and comb on fold.
2. Mono-check delivery bus alone, then with full meditation bed
Solo tongue strike and Mid in mono. Then open body bloom and companions in mono. Note fights between secondary color and hero bed.
3. Watch phone, YouTube, and social destinations
Most remote viewers hear mono or near-mono. Guides: YouTube / social mono, OBS livestream, TikTok / Reels / Shorts.
4. Re-check after stand / seating / mallet changes
Hand vs mallet, drum height, and mic angle change distance and bleed. Flip polarity again after you move stands, change OH height, or re-seat the player.
When PHIXER helps
- The material is already stereo and must stay stereo (stereo OH, stereo room or workshop print), not a mono close you fake-widened.
- Polarity, delay align, and hero-path levels are cleaned up, but fold still hollows a band of the spectrum.
- You can A/B mono with the plugin bypassed and hear clearer body or strike attack without wrecking the image.
- You are not using it to "fix" unaligned tongue+body under room, or to replace a time-align edit on the matrix.
Decision table
| You notice… | First try | Why |
|---|---|---|
| Body thins when OH opens under tongue spots | Polarity; delay secondary; quieter secondary | Arrival-time fight |
| Tongue + body harsh and hollow | Polarity; timing; hero Mid-safe path | Dual-path top + body |
| Fine in booth, thin on phone | Mono delivery bus; pull extras | Booth ≠ viewer fold |
| Stereo bed still cancels by band | PHIXER on that stereo bed | Residual spectral L/R fight |
| Mono tongue drum alone is dull | Tone / EQ / gain / mic choice | Not an L/R repair job |
When NOT to use PHIXER here
- You have not mono-auditioned the stream / mix bus yet.
- The fix is obviously polarity, delay, one hero image, or quieter secondary under tongue/OH.
- You want PHIXER to make the tongue drum louder, wider, or "more spa." Wrong job.
- The path is mono and the print problem is balance or EQ.
- See also when not to use PHIXER.
Quick path: Solo delivery bus in mono → polarity tongue vs body/room/OH → delay-align secondary → one hero tongue-drum image → quieter extras under hero → skip Haas/imagers → mono-check with full meditation bed → PHIXER only for leftover stereo cancellation on a stereo bed → fold again for stream / studio print.
Related guides
- Handpan / hang drum multi-mic phase (distinct: ding/Gu hang vs cut-tongue tank drum)
- Steelpan / steel drum multi-mic phase (distinct: Caribbean pan ensemble vs intimate tongue drum)
- Kalimba / mbira / thumb piano multi-mic phase
- Marimba / vibraphone / mallet multi-mic phase
- Percussion / hand drums multi-mic phase
- Field recording / dual recorder outdoor phase
- Polarity vs phase rotation
- When not to use PHIXER
- YouTube / social mono fold checklist
- Twitch / OBS livestream mono fold
Watch
- PHIXER tutorial + how it sounds (walkthrough with audio examples)